Inner Gaiter removal, rounded spline bolt - Advice please!

Geecee

Member
Hi there! Replacing the CV inner gaiter. All going well until I encountered a rounded 8mm stud. I've ordered a stud extraction kit from Amazon. The others came off just fine. I'm not an accomplished mechanic, so I expect the professionals will see this type of thing all the time. Any advice much appreciated!
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Robin_Cox

Member
Could you get some locking pliers clamped onto the outside to get some extra leverage to unlock it? (they would need some pretty aggressive teeth in the jaws mind you to maintain some grip). Secondly, would giving it a whack with a hammer free it up a bit? (I am also not a mechanic, mind you!).
 

Sarge

Dick Chown Award 2015
There looks to be enough teeth You should have enough grip if you tap the bit all the way in with a hammer before turning it. You may need to turn shaft to a position to be able to get bit in easier and fully home.
 
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Geecee

Member
Could you get some locking pliers clamped onto the outside to get some extra leverage to unlock it? (they would need some pretty aggressive teeth in the jaws mind you to maintain some grip). Secondly, would giving it a whack with a hammer free it up a bit? (I am also not a mechanic, mind you!).
Yep I'll need a better set of locking pliers. The flange bit isn't threaded, only the backing plate. I wondered about nudging the whole Joint as its the last stud and should pivot around.
 

Robin_Cox

Member
Yes, I was able to have a good look at those the other week during the 6-speed gearbox swap so I've got a reasonable idea about how that flange thing is set up ; luckily mine came undone first time so there was no messing around. Hope yours frees off soon!
 

RAB

Technical Specialist 1.2 TDI
Are you sure that the correct size bit was used? It looks like the next smaller size was used. Try the correct size with an impact driver.

RAB
 

Geecee

Member
Are you sure that the correct size bit was used? It looks like the next smaller size was used. Try the correct size with an impact driver.

RAB
Do you mean an impact drill Rab or a proper impact driver (that you hit with a hammer and it turns?). If its the latter there isn't the space. If its an impact drill I think it'll just spin it around, but happy to give it a go! I've been using a Torx T45 which I've just checked translates to an 8mm. I have a T47 which I could grind down a bit and use.

Extractor kit arrives tomorrow, that should offer more options.

I guess I could just take off the hub and do it all from the outside-in.
 

Weetank2

Member
Do you mean an impact drill Rab or a proper impact driver (that you hit with a hammer and it turns?). If its the latter there isn't the space. If its an impact drill I think it'll just spin it around, but happy to give it a go! I've been using a Torx T45 which I've just checked translates to an 8mm. I have a T47 which I could grind down a bit and use.

Extractor kit arrives tomorrow, that should offer more options.

I guess I could just take off the hub and do it all from the outside-in.
These are not Torx fixings you will need an XZN multi spline tool
 

Howey

Member
No not at all its the first thing i would try with a rounded spline bolt, the chisel is placed to knock the bolt loose not shear it off
 

Geecee

Member
No not at all its the first thing i would try with a rounded spline bolt, the chisel is placed to knock the bolt loose not shear it off
Howey I'm being thick I think...happy to give it a shot though, what do you exactly mean? Like use a chisel on the outer lip of the stud?
 

Howey

Member
Yeah you want to hit into the outside of the bolt head making a little groove but in a way that it dose not simply chip a bit off, sometimes this can make the center of the bolt collapse a little but on occasions this then allows the original sized socket to be hammered in and can undo like normal too
The chisel works with "shock therapy" remove all bolts you can as any movement will help
 

Geecee

Member
Yeah you want to hit into the outside of the bolt head making a little groove but in a way that it dose not simply chip a bit off, sometimes this can make the center of the bolt collapse a little but on occasions this then allows the original sized socket to be hammered in and can undo like normal too
The chisel works with "shock therapy" remove all bolts you can as any movement will help
Amazon will need a bigger truck at this rate.
 

depronman

A2OC Donor
Suggest the correct spline tool is used tapping it into the cap head screw until it bottoms
Using a torx key is not the correct tool to undo these cap head screws. You are lucky that you got any of them undone using a torx


Sent from my iPhone using Tapatalk
 

Geecee

Member
Why do people assume it is always Torx. Plough ahead with the wrong tool. XZN or spline sockets are also known as triple square sockets hence the have 12 corners or splines, Torx only have 6.
🤔
I've never heard of XZN until yesterday, but then I'm not a mechanic so why should I of? The Torx sockets look like they work, and TBH seem to pretty well, upto a point. Lots of people have Torx tools in their tool box. The instructions I was following never said anything about using XZN sockets. If it did I would have got them. They arrive today.

I am better educated now, so thank you!
 

Geecee

Member
I hadnt realised the OP had used the wrong tool, as already mentioned its a wonder any came out!
yes, the past 24 hours has been a long, frustrating and expensive education session! But, I know now, and I'll share the knowledge extensively. Thanks everyone for your help so far. I'll let you all know how I get on when Amazon delivers an extraction kit, XZN kit and metal chisel set!
 
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